/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification of Java bytecode.
 *
 * Copyright (c) 2002-2018 GuardSquare NV
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.evaluation.value;

/**
 * This class represents a partially evaluated top value. A top value is the dummy value that takes up the extra space
 * when storing a long value or a double value.
 *
 * @author Eric Lafortune
 */
public class TopValue extends Category1Value {
    // Implementations for Value.

    public boolean isSpecific() {
        return true;
    }

    public boolean isParticular() {
        return true;
    }

    public final Value generalize(Value other) {
        return this.getClass() == other.getClass() ? this : null;
    }

    public final int computationalType() {
        return TYPE_TOP;
    }

    public final String internalType() {
        return null;
    }

    // Implementations for Object.

    public boolean equals(Object object) {
        return object != null && this.getClass() == object.getClass();
    }

    public int hashCode() {
        return this.getClass().hashCode();
    }

    public String toString() {
        return "T";
    }
}
